Thickener is gravity sedimentation equipment to separate liquid-solid mixture of homogeneous phase.The thickener collects slurry to center by scraper and then discharges from the outlet.

It is extensively used in industries, such as thickener applied in mineral processing plant, separating fine mineral from water, thickener applied in chloride-alkali plant to separate salt mud, thickener applied in waste water processing plant, and wet process phosphorus acid etc. Meanwhile,NHD-serial deep cone thickener is developed and successfully applied in alumina for red mud separating and washing system to increase solid content in red mud, which bring treatment of alumina tailings into a new stage.